Never thought of the fake variant as gasoline-like but it sure has that strange, very heavy 'chemical' aftertaste that lingers in your palate. Also never tried the real thing, I wonder if i'd like it or not.

It doesn’t. I also think the fake truffle tastes weirdly like gasoline, the real ones don’t at all.

They are dramatically more expensive, though. Last time I had it, I think I paid a $50 upcharge to have it added to my pasta. Might have been more, it’s been a couple years.